Artificial denture



R. V. BLAKE.

ARTIFICIAL DENTURE.

APPLICATION FILED Dec. 6. I920.

1,369,078. Patented Feb. 22,1921.

In Ven tor:

if. .3 iv W Attys "RALPH v. BL'AKEQOF YoiIKERs, NEW YORK.

' A ppli cationfiled December 6, 1920. Serial No. 428.552.-

To all whom itmay concern: 7

Be it known that I RALPH. V. BLAKE, a citizen of the United tates ofAmerica, residing at Yonkers, New York, have invented anew and useful Artificial Denture,.of which the following is a specification My invention relates particularly .to means for securing artificialteeth to composition plates.

It has been customary to secure the teeth to the plate by means of pins which project from the teeth and whose headsare em bedded in the rubber or other composition in the molding operation. In many cases thisattachment .is so weak that thewteeth easily break ofl.

The main object {ofmyinvei tion is to 1 provide a simple means for improving the anchorage or connection between the teeth; and the plate. I have'also sought to dev se a construction which canbe used w thout any change in the technique'of inanutace true. I

Another object is to provide an attache meiit wliichis applicable to a pin,

In the drawings I have shown several:

different formsof devicesfor carrying out my inventioin Figure 1 is a f of a plate and iiig my inventionragmentary, sectional 5 view tube of my invention. s

Fig. 3 is ahorizo with a tooth.

Fig. 4c is a perspective View. of another form of anchorage device. s Fig.5 is a perspective v ew'ofan anchore l oii- Figs. -6 a'nd 7 iare perspective views of two other forms of anchorage tubes.

Fig. 8 is a perspectiveviewqshowinggan parts adjustable with" anchorage tube in two relation-to eachother.

Figl 9 is a vertical projejtionof another form oft'wo part :tube,

other.

F g. 11 is a perspective view of an anchorage device for a single pin.

Specification of Letters Patent.

usual manner.

iicial teeth. 1

tooth construction embody:

na j, seamed plan.

View showing'thetube anchorage assembled 25 t0 receive an additional anchorage wire 26.;It will. be noted'that the slot. 27 forthe Patented Feb. 22, 19.21.

Fig. l2 is a'plan View of anotherfform of anchorage device.

F 1g. 13 is a perspective view of another form'of anchorage tube. i

15' indicates one form of tooth having headed pins. 16-46 projecting therefrom.

Such teeth frequently'have shoulders such" as 17,; butthisis not necessar to the carrying out of my inventionformed of a suitable composition "such as ubber adapt d to 'be. vulcanized in the p It should be understood that llillSlIlgtllG term plate, I do notintend to be limitedto any particular form of plate, or tofits use withany particular number of teeth, but I have used the term? plate in the broad .sense of ,a molded and vulcanizedcompositio'n bearing'one or more arti-' j One-form ofanchorage device consistsof ametall c tube 19 slitalong one edge so as to enable ittogrip behind the heads of the i p ns, 16; This tube may be beveled on the ends as at20, andit may alsobe provided he plate 18-is with one or more. recesses,projections, or

perforations 21 .This'anchorage tube. is simply slipped on to the pin l616 just before orat the timethelteeth arebeing placed inthe mold ready :Eor vulcanizing. The rubber compound flows into thetube a p q and around theshanks andheads of the Fig.2 shows in perspective fa single tooth with the projecting pins and anchorage pins, an dsecurely. o'lds the t00th,.pins, and

may be provided with an extension such as clined entrance 28 may be 'pi'ovidedatone" end o f thetube so that the 'shanksr'of gthe pins maybe guided in place. .f

Theform of tube 214shown in Fig. 4 is substantially triangular in;cross-section and pins is closed at one end and open at the other. The closed end affords a, bearing bfeneath the side of onepin. A lug 28 maybe providedadapted tobe bent up for closing .theend of thetubemore or' less andserving to prevent the tube from .being rem d from the ping]. v s

The ends of the wire loop may be notched serve to increase the anchorage effect in the rubber composition. v

- In. the form shown in Fig. 8, the tube is shown in two parts 33 and'34, adapted to be telescopically applied to each other. These two parts have slots 35 and 36 for the pins. To assemble the device, the part 33 is slipped on to the pins from one edge of the tooth until one end of the slot35 engages one of the pins. The other part 34 is then slipped on to the tube 33 from the opposite direction until the end of the slot 36 engages the other pin.=. Thus each pin is engaged around substantially half oi the circumference of its shank and head. This form of tube may be .-'"provided withflanges 37 for increasingthe anchorage effect.

In the form shown in Fig. 9, 38 and 39 are adapted to be telescoped, and each part is providedwith a slot adapted to r'receive both pins. To attach this device, the

two parts 38 and 39 are assembled one withinthe other until the broader portions 40 and 41 register. They are thenapplied to the pins and' the two parts then pushed together until the narrow slot 42 engages the shank of one pin and the narrow slot 43 engages the other pin.

In the'form shown in Fig. 10, the tube is in two parts 44 and 44, which have shanks connected by the corrugated portion 45.

The slots 4646 areadapted to receive the pin heads, and the narrower portions 4747 are adapted to receive the shanks of the pins whenthe tubes are turned. By bending the corrugated portion 45 more or less in one direction or theother, the spacing of the slots 46 from each other may be varied so as to accommodate difierent spacings of pins.

The form of anchorage tube 48 shown in Fig. 11 has but a single slot 49 for one pin.

Lil

Obviously, one of these devices may be provided for each pin irrespective of the spacing of the pins.

In the form shown in Fig. 12 the anchor- -l age tube is secured to a clip 54 which in turn carries the tooth.

In the form shown inFig. 13, the tube 57 is provided with but a single recess 58. Another recess as indicated at 59 by dotted lines may be cut at the properplace to correspond with the spacing of the pins on the particuthe two parts lar tooth to be used. This tube may be provided with an offset 60 to increase the anchorage effect. Obviously, any of the forms of tubes may beprovided with openings, pro'ections, or recesses for increasing the anc orage.

I claim 1. The combination of a composition.

plate, an artificial tooth having pins and an anchorage'tube embracing said pins, said pins and said tubes being embedded in the composition. i

2. The combination of an artificial tooth, anchoragepins projecting therefrom, an anchorage tube connected with'said pins, an anchorage loop projecting from said tube and a composition vulcanized to said loop,

tooth, tube, and pins.

3.- In a vulcanized plate construction, the combination of a tooth, a tubular anchorage device extending transversely of said tooth, andmeans for securing said device to said tooth, the composition of the vulcanized plate extending into and embedding said tubular anchorage device.

4'. Ina vulcanized plate construction, the combination of atooth, pins projecting from the rear face thereof, a hollow clamping device mounted on said pins and extending transversely of said tooth, the composition of the plate filling and embracing said device and place.

two headed pins projecting therefrom, a split tube having a notched portion embraclng one of said pins, and another portion embracing the other pin, and a plate vulcanized tosaid tooth, pins, and tube."

As" an article of manufacture, a slotted anchorage tube adapted to be slipped over the heads of pins attached to a tooth andadapted to be embedded in a vulcanized plate to lock the pins in the plate.

7. The combination of'an artificial tooth,

pins projecting therefrom, an anchorage device-mounted on said'pins and having means for preventing movement longitudinally of the tooth, and a vulcanized late embracing said device and holding it 1n fixed relation relative to said pins and said tooth. i

8. An anchorage device for an artificial tooth and vulcanized plate comprising an open ended tube and a loop adjustably connected thereto and in the plate.

9. An anchorage device for an" artificial tooth and vulcanized plate comprising a tube having openings for the plate composition and having means enabling it'to be secured horizontally to a tooth and embedded in the plate. A

RALPH V. BLAKE.

anchoringqsaid tooth and pins in 5. The combination of an artificial tooth,

adapted to be embedded 

